Muzzle brake



sept. 29, 1925. l 1,555,026,

- J. B. ROSE MUZZLE BRAKE Filed April 26,. 1924 gf-L- paanfea sept. 29,i925. unir-ED- STAT-ES JOHN B. Resia, or WARRENTON, vrneINIA.

. ,Muzznn BRAKE.

Application 'mea April 2s, 1924. serial' No. 109,264.

(GBA-MED UNDER THE ACT 40F MARCH 3, 1883; v22 STAT. I.. 625:)

. To all 'whom it. may'comem:

Be it known that I, JOHN B.- Rosn, a cit-izen of the United States, anda resident of Warrenton, countyof Fauquier, and State 5 lof Virginiahave invented an Improvement in Muzzle rakes, of which the following isa specification.

The invention .described herein lmay be used by the Government, or anyof its oflicers or employees in prosecution of work for the Government,or by any other person in the United States, without paymentto me of anyro alty thereon, in accordance with the act of arch 3,1883. .Y Myinvention relates, in general terms, to muzzlebrakes for guns, which aredesigned to check 'the energy of recoil by utilizing the gases generated'upon dischargeof the piece. More particularly my invention resides inthe provision of means for dissipating the gases in any desireddirection.

To attain the maximum edect, devices of this character have been soconstructed that the full force of the gases' are diverted against thebrake in such a manner that the yforce of resistance will be exerted asnearly parallel as possible to the\direction of recoil. Consequently,the released gases will be -projected along the line of recoil and will30 seriously embarrass the crew which is serving the gun. Since thesuccessful application and practical operation 'of a device of thischaracter is dependent upon the effect of the gases on the gun crew itis necessary in order to secure a maximum operating efiiciency to socontrol the final disposition of the escaping gases that the recoilbrake will not only be effective but that the gun crew will not beseriouslyhampered.

By proper adjustment of the size, shape,

and disposition of the gas exits, I create a resultant movement 'of thegases after eX- pulsion which will deflect them in any desireddirection. To these and other ends, my invention consists in theconstruction, arrangement and combination of parts, describedhereinafter and pointed out inthe claims forming a part of thisspecification.

One embodiment of my invention is illustrated by way of example in theaccompanying drawings, in which, k

` Fig. 1 is a side elevatlon of a gunemploying mymuzzle brake;

Fig. 2 is aside elevation of the muzzle brake, partly 1n longitudinalsection toshow the1 arrangement'of the deflecting elements; an

Fig. '3 is a sectional v-iew taken on the line 3 3 of'Fig. 2. l

In the drawings in which like characters fof reference designate like orsimilar'parts, 1 indicates the barrel of agun, having an enlargedportion 2,which is screw threaded to receive a muzzle brake 3. Themuzzle brake 3 is cylindrical' in shape and comprises an attachingcollar 4, a rnt collar 5, and a plurality of spaced connecting ribs 6 topermit lateral expansion of the gases generated by explosion. 'Theattaching collar 4 is formed with an annular fiange 7 against which isseated a baffle plate 8 secured by means of screw bolts '9. A'ring 10thread-- edly mounted on the attaching collar 4 abuts against thebaiilerplate 8 and receives the terminal portion of the screw bolts'9.The

elements of the muzzle brake 3 are internally threaded to receive a.series of spaced baflie plates 11 mounted on tie rods 12 and anchored ina base ring 13, which rests flush against the face of the muzzle.

The baflie rings 11 are formed with a bore slightly larger than the boreof the gun so. as to permit free passage of the projectile and they arefurtl er provided with concave vrear faces of' variable degree toreceive the impact ofthe gases and togovern the d irection of'expansion.The forward face of each ring is of irregular convexity so as to morereadily direct the escaping gases into the concave :tace of the nextpreceding ring. The convex and concave faces of these rings are soformed and designed that the gases directed by a few of the rearmostrings will diverge forwardly, while the gases directedb the remainingrings w-ill diverge rearwar ly, it being preferable that the gasesescaping from between the rear-l most rings have the least divergence ofanyv of the forwardly diverted streams of gas, while the gas escapingfrom 'between the foremost rings will leave the least'divergence of anyof the rearwardly directed streams of gas; the object being to leave theresultant rearward movement of the gases sufficiently divergent to avoidinjury los' to the gun crew and gun mount, while at the same timesecuring a sufiicie'nt rearward direction. of the gases t0 provide auseful breaking force.

In operation, the force of the explosion generates gases which followthe projectile through the 4bore of the gun. These gases upon flowingfrom the muzzle of the gun` iinpinge upon the haiile rings A to N andescape through the spaces between the ribs (l: The direction of exit ofthe gases is shown by arrows a to n and is controlled by the degree ofconcavity of each particular ring. t will thus be seen that the gasesfollowing the direction a to e will move forwardly of the gun crew whilethe gases following the direction f to fn, will be diverted rearwardlytowards 'the crew. By this arrangement the resultant movement of thegases after emission from the muzzle brake may be so Controlled thattheir final dissipation will not seriously affect the crew operating thegun. i

By proper adjustment of the size, shape and disposition of the bafierings, it is possible to' create a resultant movement of the gases inany desired direction.

Having thus described my inventiomwhat I claim is:

1. A muzzle brake for guns comprising a casing and a plurality of spacedbaffle rings, the rings nearest thegun muzzle having forwardly directedexits and the more remote casing formed with a plurality ofspacedV ribsand a set ofbaffle rings mounted on rods and adapted for threadedengagement within the casing.

4. A muzzle brake for guns provided with spaced discharge ports, theforwardly situated ports adapted to discharge gases in a rearwardlydivergent direction; and the rearwardly situated ports adapted todischarge gases in a forwardly divergent direction.

5. A muzzle brake for guns provided with spaced discharge ports'arrangedto direct the escaping gases along converging lines, whereby a resultantmovement ofthe gases will be had in a direction to clear the gun crew.

JOHN B; ROSE.

